The adp5589 seems to have the same behavior as similar devices as
explained in
commit 910a9f5636f5 ("Input: adp5588-keys - get value from data out when
dir is out").
Basically, when the gpio is set as output we need to get the value from
ADP5589_GPO_DATA_OUT_A register instead of ADP5589_GPI_STATUS_A.
Fixes: 9d2e173644bb ("Input: ADP5589 - new driver for I2C Keypad Decoder and I/O Expander")
Signed-off-by: Nuno Sa <nuno.sa@xxxxxxxxxx>
---
drivers/input/keyboard/adp5589-keys.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index 68a29d67be57fc22088a912694e3e6e16e46d956..922d3ab998f3a5dfbaf277f10eb19e5cd1b35415 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -391,10 +391,17 @@ static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off)
struct adp5589_kpad *kpad = gpiochip_get_data(chip);
unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
+ int val;
- return !!(adp5589_read(kpad->client,
- kpad->var->reg(ADP5589_GPI_STATUS_A) + bank) &
- bit);
+ mutex_lock(&kpad->gpio_lock);
+ if (kpad->dir[bank] & bit)
+ val = kpad->dat_out[bank];
+ else
+ val = adp5589_read(kpad->client,
+ kpad->var->reg(ADP5589_GPI_STATUS_A) + bank);
+ mutex_unlock(&kpad->gpio_lock);
+
+ return !!(val & bit);
}
static void adp5589_gpio_set_value(struct gpio_chip *chip,
--
2.46.1
